Home / 681,053.24-939,895.92-375,129.56

Finding the Fourth Proportional to 681,053.24, 939,895.92 and 375,129.56

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Solution

The fourth proportional to 681,053.24, 939,895.92 and 375,129.56 is: 517,702.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,053.24 : 939,895.92 = 375,129.56 : x
  2. Step 2: Convert to fraction form
    681,053.24/939,895.92 = 375,129.56/x
  3. Step 3: Cross multiply
    681,053.24x = 939,895.92 × 375,129.56
  4. Step 4: Simplify right side
    681,053.24x = 352,582,742,915.40
  5. Step 5: Solve for x
    x = 352,582,742,915.40/681,053.24
  6. Step 6: Final answer
    x = 517,702.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.